Arithmetic logic unit

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History

John von Neumann EDVAC Information Age Serial ALU Whirlwind I

14 related topics

Applications

Registers Multiple-precision arithmetic Conditional branching Register file Accumulator

9 related topics

Signals

Nets Electrical conductors Digital signals Buses Word size

8 related topics

Overview

Computing Combinational Digital circuit Arithmetic Bitwise operations

17 related topics

Topics to explore

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Overview

Computing
Combinational Combinational logic
Digital circuit
Arithmetic
Bitwise operations Bitwise operation
Integer
Binary numbers Binary number
Floating-point unit
Floating point
Central processing unit
Graphics processing units Graphics processing unit
Operands Operand
Opcode
Status registers Status register
Carry Carry (arithmetic)
Overflow Arithmetic overflow
Parity Parity flag

Signals

Nets Net (electronics)
Electrical conductors
Digital signals Digital signal (electronics)
Buses Bus (computing)
Word size
Parallel bus
Enumerated value Enumeration
Machine language instruction Machine code

Circuit operation

Functions

Applications

Registers Hardware register
Multiple-precision arithmetic
Conditional branching Branch (computer science)
Register file
Accumulator Accumulator (computing)
Fixed-point Fixed-point arithmetic
Significand
Pipelined Pipeline (computing)
Production line Assembly line

Implementation

History

John von Neumann
EDVAC
Information Age
Serial ALU Bit-serial architecture
Whirlwind I
Fairchild Fairchild Semiconductor
Am2901 AMD Am2900
Bit slice Bit slicing
Zilog Z80
Moore's law
Binary multipliers Binary multiplier
Electro-mechanical Mechanical computer
Electronic Electronic circuit
Actin

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Map overview Semantic statistics

Nodes69

Edges68

Triples8

Avg. degree1.97

Density0.028986

Components1

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Important terminology Word statistics

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Important terminology

alu operation operand bit result operations alus carry status signals typically arithmetic appears register external logic inputs operands bits shift

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
AND	instance of	in bitwise logical operations	0.80	text
OR	instance of	in bitwise logical operations	0.80	text
the carry status bit is typically not modified as it is not relevant to such operations.In CPUs	instance of	in bitwise logical operations	0.80	text
the stored carry-out signal is usually connected to the ALU's carry-in net	instance of	in bitwise logical operations	0.80	text
the Am2901	instance of	including four-bit ALUs	0.80	text
74181	instance of	including four-bit ALUs	0.80	text
barrel shifters	instance of	and architectural enhancements	0.80	text
binary multipliers	instance of	and architectural enhancements	0.80	text

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Overview

Signals

Circuit operation

Functions

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Implementation

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